/**
 * Created by Jeffery Wang.
 * Create Time: 2015-06-16 19:52
 * Author Link: http://blog.wangjunfeng.com
 */
var nativeShare = function (elementNode, config) {
	if (!document.getElementById(elementNode)) {
		return false;
	}

	var qApiSrc = {
		lower: "http://3gimg.qq.com/html5/js/qb.js",
		higher: "http://jsapi.qq.com/get?api=app.share"
	};
	var bLevel = {
		qq: {forbid: 0, lower: 1, higher: 2},
		uc: {forbid: 0, allow: 1}
	};
	var UA = navigator.appVersion;
	var isqqBrowser = (UA.split("MQQBrowser/").length > 1) ? bLevel.qq.higher : bLevel.qq.forbid;
	var isucBrowser = (UA.split("UCBrowser/").length > 1) ? bLevel.uc.allow : bLevel.uc.forbid;
	var version = {
		uc: "",
		qq: ""
	};
	var isWeixin = false;

	config = config || {};
	this.elementNode = elementNode;
	this.url = config.url || document.location.href || '';
	this.title = config.title || document.title || '';
	this.desc = config.desc || document.title || '';
	this.img = config.img || document.getElementsByTagName('img').length > 0 && document.getElementsByTagName('img')[0].src || '';
	this.img_title = config.img_title || document.title || '';
	this.from = config.from || window.location.host || '';
	this.ucAppList = {
		sinaWeibo: ['kSinaWeibo', 'SinaWeibo', 11, '微博'],
		weixin: ['kWeixin', 'WechatFriends', 1, '微信'],
		weixinFriend: ['kWeixinFriend', 'WechatTimeline', '8', '朋友圈'],
		QQ: ['kQQ', 'QQ', '4', 'QQ'],
		QZone: ['kQZone', 'QZone', '3', '空间']
	};

	this.share = function (to_app) {
		var title = this.title, url = this.url, desc = this.desc, img = this.img, img_title = this.img_title, from = this.from;
		if (isucBrowser) {
			to_app = to_app == '' ? '' : (platform_os == 'iPhone' ? this.ucAppList[to_app][0] : this.ucAppList[to_app][1]);
			url = url + '#' + to_app;
			if (to_app == 'QZone') {
				B = "mqqapi://share/to_qzone?src_type=web&version=1&file_type=news&req_type=1&image_url="+img+"&title="+title+"&description="+desc+"&url="+url+"&app_name="+from;
				k = document.createElement("div"), k.style.visibility = "hidden", k.innerHTML = '<iframe src="' + B + '" scrolling="no" width="1" height="1"></iframe>', document.body.appendChild(k), setTimeout(function () {
					k && k.parentNode && k.parentNode.removeChild(k)
				}, 5E3);
			}
			if (typeof(ucweb) != "undefined") {
				ucweb.startRequest("shell.page_share", [title, title, url, to_app, "", "@" + from, ""])
			} else {
				if (typeof(ucbrowser) != "undefined") {
					ucbrowser.web_share(title, title, url, to_app, "", "@" + from, '')
				} else {
				}
			}
		} else {
			if (isqqBrowser && !isWeixin) {
				to_app = to_app == '' ? '' : this.ucAppList[to_app][2];
				url = url + '#' + to_app;
				var ah = {
					url: url,
					title: title,
					description: desc,
					img_url: img,
					img_title: img_title,
					to_app: to_app,//微信好友1,腾讯微博2,QQ空间3,QQ好友4,生成二维码7,微信朋友圈8,啾啾分享9,复制网址10,分享到微博11,创意分享13
					cus_txt: "请输入此时此刻想要分享的内容"
				};
				ah = to_app == '' ? '' : ah;
				if (typeof(browser) != "undefined") {
					if (typeof(browser.app) != "undefined" && isqqBrowser == bLevel.qq.higher) {
						browser.app.share(ah)
					}
				} else {
					if (typeof(window.qb) != "undefined" && isqqBrowser == bLevel.qq.lower) {
						window.qb.share(ah)
					} else {
					}
				}
			} else {
			}
		}
	};

	this.html = function() {
		var position = document.getElementById(this.elementNode);
		var html = '<div class="label">分享越多，更新越快，每天限一次</div>'+
			'<div class="list clearfix">'+
			'<span data-app="sinaWeibo" class="nativeShare weibo"><i></i>微博</span>'+
			'<span data-app="weixin" class="nativeShare weixin"><i></i>微信</span>'+
			'<span data-app="weixinFriend" class="nativeShare weixin_timeline"><i></i>朋友圈</span>'+
			'<span data-app="QQ" class="nativeShare qq"><i></i>QQ</span>'+
			'<span data-app="QZone" class="nativeShare qzone"><i></i>空间</span>'+
			'<span data-app="" class="nativeShare more"><i></i>更多</span>'+
			'</div>';
		position.innerHTML = html;
	};

	this.isloadqqApi = function () {
		if (isqqBrowser) {
			var b = (version.qq < 5.4) ? qApiSrc.lower : qApiSrc.higher;
			var d = document.createElement("script");
			var a = document.getElementsByTagName("body")[0];
			d.setAttribute("src", b);
			a.appendChild(d)
		}
	};

	this.getPlantform = function () {
		ua = navigator.userAgent;
		if ((ua.indexOf("iPhone") > -1 || ua.indexOf("iPod") > -1)) {
			return "iPhone"
		}
		return "Android"
	};

	this.is_weixin = function () {
		var a = UA.toLowerCase();
		if (a.match(/MicroMessenger/i) == "micromessenger") {
			return true
		} else {
			return false
		}
	};

	this.getVersion = function (c) {
		var a = c.split("."), b = parseFloat(a[0] + "." + a[1]);
		return b
	};

	this.init = function () {
		platform_os = this.getPlantform();
		version.qq = isqqBrowser ? this.getVersion(UA.split("MQQBrowser/")[1]) : 0;
		version.uc = isucBrowser ? this.getVersion(UA.split("UCBrowser/")[1]) : 0;
		isWeixin = this.is_weixin();
		if ((isqqBrowser && version.qq < 5.4 && platform_os == "iPhone") || (isqqBrowser && version.qq < 5.3 && platform_os == "Android")) {
			isqqBrowser = bLevel.qq.forbid
		} else {
			if (isqqBrowser && version.qq < 5.4 && platform_os == "Android") {
				isqqBrowser = bLevel.qq.lower
			} else {
				if (isucBrowser && ((version.uc < 10.2 && platform_os == "iPhone") || (version.uc < 9.7 && platform_os == "Android"))) {
					isucBrowser = bLevel.uc.forbid
				}
			}
		}
		this.isloadqqApi();
		if (isqqBrowser || isucBrowser) {
			this.html();
		}
	};

	this.init();

	var share = this;
	var items = document.getElementsByClassName('nativeShare');
	for (var i=0;i<items.length;i++) {
		items[i].onclick = function(){
			share.share(this.getAttribute('data-app'));
		}
	}

	return this;
};
